Enoch Chau and Rebecca Leung SD Hacks 2019 https://devpost.com/software/scale-up

https://tutorials-raspberrypi.com/digital-raspberry-pi-scale-weight-sensor-hx711/

1. Using out of box scale, record the weight on an object.
2. disassemble scale and connect load cell to hx711 and hx711 to Raspberry pi.
3. run sample code for hx711 and calibrate load scale using weight of object previously found.

https://www.dexterindustries.com/howto/use-google-cloud-vision-on-the-raspberry-pi/

Fruits: apple, banana, orange to start

1. API GET request: search by object name

   https://api.nutritionix.com/v1_1/search/{name_of_object}?results={min_results}%3A{max_results}&fields=item_id%2Citem_name&appId={id}}&appKey={key}

2. Get item_id
3. API GET request: get nutrition information by item_id

   https://api.nutritionix.com/v1_1/item?id={item_id}&appId&appId={id}}&appKey={key}

1. API POST request: search by object name

   https://api.nal.usda.gov/fdc/v1/search?api_key={key}

2. Get fdcId
3. API GET request: get nutrition information by fdcId

   https://api.nal.usda.gov/fdc/v1/{id}?api_key={key}

4. Get calories value by getting foodNutrients id 1008

1. be able to tare scale using button
2. set up LED to blink when scale is done processing calories
3. LCD to display weight (grams), fruit type, calories

Upon button press to record Caloric data.

1. Weight is recorded from load cell.
2. Fruit type is recorded from google vision/pi camera.
3. Grams per calorie is calculated using dictionary.
4. LLCD is updated.
5. Calories are recorded somewhere (google sheet with iftt?)

1. Implement a database to collect caloric data.
2. implement user facing android app or website that can record calories.